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The Waterproof Pro Seam Tape™ is the tougher, stronger, and more durable choice for your crawl space encapsulation. Made by one of North America’s leading tape manufactures with our proprietary adhesion requirements, you won’t find this tape at any of our competitors….

This product uses our pressure sensitive adhesive formula that achieves 100% strength in 15 minutes at 70 degrees F. How strong is 100% strength? 4.70 pounds of adhesion per square inch! No one can say that about their tape…

Sold individually or in bulk. Save on orders of 12 or more rolls.

Price: $32.99
In stock
    Availability: In Stock
    Ships Next Day or Sooner™
    WST-PRO

    Quantity:
    Item #: WST-PRO
    Availability: In Stock
    Ships Next Day or Sooner™

    Quantity

    12-2324+

     Price Each 

    $28.04$20.00

    This tape is used to seal the seams of the crawl space vapor barrier. It comes in  4" x 187' rolls (compare to rolls at only 108') and is white to match all of the vapor barriers we offer. This product, when installed correctly, will give you a waterproof seal at the seams. In very wet conditions it is recommended to use the Foundation Seal Tape™ under the seam to give an extra layer of protection. This tape is the perfect thickness for this application allowing proper flexibility without sacrificing strength.  "Cheaper" tapes are known to release when they come in contact with moisture leaving your crawl space exposed. Just because other tapes are white does not make them the same. 

    This product is Field Tested and the only tape we warranty on our installs.
    If you save $5 on a roll of tape and it fails, did you save $5?


    Sold individually, or buy in bulk. Save on orders of 12 or more rolls!

    This tape comes in one roll that is 4" wide and 187" long. 

    How much tape do you need? Here is the guide we go by- 1 roll of WST for every 500 Sq Ft of floor space rounded up. For example; 400 Sq Ft you need 1 roll, 700 Sq Ft you will need 2 rolls, 1600 Sq Ft you will need 4 rolls etc. In addition you will need one roll for every 6- 8x8 or 8x16 support. Case includes 12 rolls- Save 15% on orders of 12 or more rolls.

    Overall Customer Rating of 125 Reviews:
    MN

    Amazing!

    Durability:
    Quality:
    Recommend:
    Pros:
    Cons:
    Much like a quality barrier material sold by this site, this tape is quality and you need it do a good job. It is sticky as hell and sticks to anything.

    East TN

    Love this tape!

    Durability:
    Quality:
    Recommend:
    Pros:
    Cons:
    I purchased this tape along with a 12mil vapor barrier for a DIY crawl space project. The tape is thick and super sticky so that it adheres quickly and thoroughly to the vapor barrier for a clean, smooth job. The white color blended perfectly with the vapor barrier, to make it seamless. I would highly recommend this product for any vapor barrier project.

    PA

    The right product

    Durability:
    Quality:
    Recommend:
    Pros:
    Cons:
    I bought this to seal below grade EPS insulation and the vapor barrier on top, all to be covered with a slab of concrete. It was expensive and the shipping added another $15 dollars to the total ... but it was absolutely necessary, worked really well, and was the proper product for the job. Good professional-grade quality.

    62530

    Tape

    Durability:
    Quality:
    Recommend:
    Pros:
    Cons:
    It is a quality product. But I just installed it in my crawl, so have no idea on durability.

    Perfect Tape

    Rating:
    Pros:
    Cons:
    Everything was perfect👍